Question: What child of Ferdinand I died on 1109-7-1?
Paraphrase: What child of Ferdinand I kicked the bucket on 1109-7-1?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q296863 wdt:P40 ?answer . ?answer wdt:P570 ?x FILTER(contains(YEAR(?x),'1109'))}
Answer: Alfonso VI of León and Castile